5 points - mean centre.center

If I have 5 points how can I use autocad to determine the mean centre?
tia

 

I am an auctocad beginner so I'll try

step in code

So this is the mean center! - very nice

what is this?

thanks very much
easy for you, eh!

 

Makes an ordered (coordinate) pair, though I think he forgot to divide by 5.

 

When would you want something like this? Moving mechanical stuff?

 

Beginner - yes.
I went to the local college, a few years ago, and took three autocad
courses. But I've only had occasion to do a couple of drawings.

I shoot rifle at 100 and 200 yards. Object being to drill 5 shots into
one hole. I shoot 5 x 5 shots per target.
Now I'm interested in determining the mean centre for each 5 shot
group. This will help me adjust the scope, which is 1/8" adjustable at
100yds.
I made up the original targets using visio.
Now I started drawing the groups on a visio template and got lost! I
was trying to determine the centre diagrammatically draw intersecting
lines & circles and going crazy. Guess I've forgotten all my algebra.
Thought I'd move the problem over to autocad but still didn't know
where to start. I knew if I asked this group I'd get the math to solve
the problem.
So thanks very much

 

I have no idea why Don wanted this. Have LISP, will code.

-Bill

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Oh, now I see his reply about target shooting. Unlike a centroid,
finding the mean weights the result toward two points close together.

 

Thanks Bill

The pencil solutions will be helpful for roughing in a new scope at
the range.

thanks again